Ironman
70.3 (1.9 / 90 / 21.1 km) · Europe
Official website: ironman.com/races/im703-belgrade
Ironman Belgrade 70.3 is a 70.3 (half-distance) triathlon in Serbia, part of the Ironman calendar. The next edition is on 13 September 2026. The course is 1.9 km of swimming, 90 km on the bike and 21.098 km of running.
Climbing adds up to 413 m, 244 m on the bike and 169 m on the run, a moderate amount for the distance. The course is described as flat.
Water temperature is typically around 20 °C, inside the wetsuit-optional range for age-group athletes, who may wear one up to 24.5 °C.
Pacer Quest rates Ironman Belgrade 70.3 as Easy: 413 m of climbing (moderate); finishers -4% faster than the average 70.3. The rating is automatic and compares total climbing for the distance, water temperature and, where results exist, how finishers compare with the average for that distance.
At the 2025 edition, 70 qualifying slots were shared among 552 ranked finishers, with slots allocated by age-graded rank under IRONMAN's performance-based system. For example, a M40-44 athlete needed roughly 4:44:27 and a F40-44 athlete needed roughly 4:39:30 to be inside the line.
Open the Race Lab to simulate this course with your own swim, bike and run paces, or use the Qualify module to place your time against these results. Registration and official details are on the organiser's website.
| Age group | Finishers | Fastest | Median | Qualifying time (est.) |
|---|---|---|---|---|
| M18-24 | 35 | 4:08:57 | 5:36:55 | 4:23:27 |
| M25-29 | 52 | 3:56:11 | 6:07:26 | 4:25:20 |
| M30-34 | 82 | 4:08:13 | 5:29:59 | 4:32:52 |
| M35-39 | 91 | 4:12:35 | 5:41:12 | 4:37:19 |
| M40-44 | 79 | 4:14:48 | 5:34:47 | 4:44:27 |
| M45-49 | 52 | 4:20:38 | 5:27:36 | 4:53:26 |
| M50-54 | 41 | 4:22:29 | 5:27:57 | 4:58:15 |
| M55-59 | 25 | 4:30:41 | 5:36:29 | 5:07:35 |
| M60-64 | 12 | 5:04:17 | 6:05:32 | 5:21:36 |
| M65-69 | 3 | 6:15:51 | 6:44:11 | 5:44:50 |
| F18-24 | 5 | 4:40:26 | 5:31:05 | 4:25:33 |
| F25-29 | 14 | 5:59:36 | 6:47:52 | 4:23:27 |
| F30-34 | 11 | 5:23:18 | 6:16:42 | 4:28:04 |
| F35-39 | 9 | 4:57:33 | 5:46:13 | 4:32:47 |
| F40-44 | 15 | 5:11:14 | 5:53:14 | 4:39:30 |
| F45-49 | 13 | 4:53:20 | 5:51:25 | 4:46:36 |
| F50-54 | 8 | 4:59:21 | 6:26:38 | 4:52:12 |
| F55-59 | 2 | 5:44:09 | 6:39:10 | 5:01:13 |
| F60-64 | 2 | 6:00:45 | 6:08:53 | 5:13:58 |
| F65-69 | 1 | 6:46:05 | 6:46:05 | 5:38:51 |
Qualifying time (est.) = the finishing time whose age-graded rank (IRONMAN official factors) lands on the last slot at this edition, derived from published results — the same method as the Pacer Quest Qualify tool. Actual slot allocation and roll-down vary by race and year. Race results data: CoachCox IM Stats.
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